Verifying RocksDB

Verify RocksDB using a tool.
```
mkdir -p /home/rocksdb/rkdb
```
```
ldb --db=/home/rocksdb/rkdb --create_if_missing put k1 v1
```
```
ls /home/rocksdb/rkdb
```
When a small amount of data is written to the memtable, no sst file exists.
```
ldb --db=/home/rocksdb/rkdb batchput k2 v2 k3 aaaaa k4 bbbbb k5 ccccc
```
```
ls /home/rocksdb/rkdb
```
After multiple groups of data are written, the data is flushed from the memory to drives; then an sst file is generated in the database.
View data in the RocksDB database.
```
ldb --db=/home/rocksdb/rkdb scan
```
For details about other verification operations, see Verifying RocksDB APIs.

Parent topic: Installation and Uninstallation Based on an RPM Package